How would you explain a number system to someone who had never seen numbers before?

We have that in teach number system to someone who had never seen numbers before you have to give a clear and understand explanation on numbers and number systems to in a language they can understand.

Firstly we have to understand what number are

Numbers

A number or numbers are just words or expressions or drawings or even symbols use to represent(Represent being a key word) a particular quantity or used to calculate.

With the definition above every one must have come across number but in a different way from other

Therefore

its just left for you to open their eyes to what the have already encountered

In conclusion

You have to give a clear and understand explanation on numbers and number systems to in a language they can understand

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A number system is a mathematical system for representing numbers, that is, quantities.

Thus, the numbers are writing symbols that allow a mental representation of a certain quantity, as well as the different mathematical operations that arise from said quantities.

Otherwise, that is, if the numbers did not exist, the representation of quantities would be very limited.

It also would only abstain from the existence or nonexistence of a certain thing or situation.

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step-by-step explanation:

20-2= what